Crime Solvers Central
Crime Solvers Central
302 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

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Summary based on the NamUs case record (MP13948) and 6 other sources
Mark Alan Cohen, a 55-year-old resident of Palm Beach Gardens, Florida, was last seen on May 30, 2011. It is believed that Cohen left his home that day aboard his 23-foot boat, named *Good Enough*, which was docked behind his residence. Later that evening, the boat was found washed ashore on Singer Island, just south of John D. MacArthur Beach State Park. The ignition was on, and the throttle was in the neutral position, but there was no sign of Cohen.

At the time of his disappearance, Cohen was facing significant personal challenges, including financial and marital issues. He had reportedly been suffering from depression and even sent his wife an email on the day of his disappearance with the subject line "Letting go," indicating a potential emotional distress. Due to these circumstances, authorities consider him endangered, and his case remains unsolved despite ongoing efforts to locate him.
Last Seen: May 30, 2011

Possible Unidentified Matches (4)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

79%Possible
John Doe — Oakland Park, Florida
UP13347 • Found Mar 26, 2013
View case
Sex ✓Male
Age 85%Est. 40–60 vs 55 when missing
Race 100%White
Location 90%47 mi away, same state
TimingFound 22 months after last seen
Height 100%5'8" vs 5'8"
Hair 100%Brown vs Brown
76%Possible
John Doe — Boynton Beach, Florida - unidentified case UP104173
John Doe — Boynton Beach, Florida
UP104173 • Found Jun 26, 2022
View case
Sex ✓Male
Age 100%Est. 58–72 vs 55 when missing
Race 100%White
Location 97%23 mi away, same county
TimingFound 11 years after last seen
Height 75%5'9"–6'5" vs 5'8"
76%Possible
John Doe — Miami, Florida
UP138033 • Found Nov 3, 2022
View case
Sex ✓Male
Age 100%Est. 58–72 vs 55 when missing
Race 100%White
Location 82%76 mi away, same state
TimingFound 11 years after last seen
Height 100%5'7" vs 5'8"
75%Possible
John Doe — Miami, Florida - unidentified case UP13117
John Doe — Miami, Florida
UP13117 • Found Nov 1, 2014
View case
Sex ✓Male
Age 85%Est. 45–70 vs 55 when missing
Race 100%White
Location 82%76 mi away, same state
TimingFound 3 years after last seen
Height 84%5'10" vs 5'8"
Weight 92%172 lb vs 200 lb
Hair 40%Bald vs Brown

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.

Unidentified photos are blurred because many are post-mortem. Tap a photo to reveal it.